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Football is the game of presence of mind with quality athleticism hence, the effects of psychological factors on the personality of football players cause vigorous results which ultimately affect the players’ actions and performances on the ground. It is the personality of the football players that plays a vital role in their consistent performances and building their careers in a highlighted way. According to the current study, active learning and adaptive behavior are the two major psychological factors which affect the confidence and personality of football players, particularly in China. To accomplish the objectives of the current study, a quantitative research approach was adopted. Hence, a survey was conducted to collect the primary data from the 450 football players who were the respondents of the current study, aimed to perform data analysis. The results revealed that an increase in active learning and adaptive behavior; causes an increase in the players’ confidence and personality. Hence, the current study helps the players and responsible authorities to make players’ personalities object-oriented.

This paper analyzes the factors affecting the development of language teaching in young children based on the five domains of language teaching in young children. Teachers’ teaching behaviors, kindergarten environmental language, and language activities were selected as the 3 dimensions of kindergarten language teaching organizational climate, and the relationship with the 3 dimensions of language teaching was defined. Based on the relationship definition, the initial hypothesis was set, and the AMOS structural equation model of the influence of kindergarten organizational climate on language teaching was constructed. The PLS and LISREL modeling methods of structural equation modeling were used to analyze the 3 dimensions influencing language teaching and learning of young children, and the factors influencing language teaching and learning of young children were analyzed in multiple clusters from different domains and class teaching sizes. There were significant differences in the standardized regression coefficients of the structural model for the five domains of instructional activities, i.e., / = 1.68, = 55, and = 0.02. There were significant differences in the standardized regression coefficients of the structural model for class size, i.e., / = 1.8903, = 27, and = 0.008.

Flowing sand is a special surrounding rock encountered by tunnel construction. Due to the looseness and low viscosity of the flowing sand, after excavation, the sand body is easy to flow along the open surface. In addition, the water seepage also causes tunnel instability. Considering the characteristics of water seepage, how to improve the stability of flowing sand bodies and prevent the instability of surrounding rocks has become a difficult problem. In this paper, a parametric experiment on the surrounding rock taken from the project site was carried out, and then, a numerical simulation of the flowing sand body was conducted to study the precipitation construction method and stability of the flowing sand body. Other than that, the tunnel face vacuum dewatering, vertical vacuum dewatering at the top of the tunnel, and the vacuum dewatering technology of the gravity well in poor geological section were systematically analyzed in our research. A radial vacuum enclosed precipitation process for the face of the tunnel was proposed, which effectively solved the problem concerning continuous seepage of water in the front. Through numerical simulation and field experiments, the basis for determining the precipitation parameters of the tunnel face was obtained, while aiming at the top position of the tunnel, a vertical vacuum negative pressure precipitation method of intercepting the top seepage water and the water supply behind the top of the tunnel was proposed. For the bottom of the tunnel, setting gravity wells on the side walls for the purpose of preventing seepage at the bottom was put forward. The application of these methods in the project ensured the safety of construction and improved the construction schedule. After the completion of the dewatering construction, the method of inserting plywood into the small pipe was adopted to avoid the collapse of the dry sand. Then, to solve the problem of borehole collapse in flowing sand bodies, pipe feeding was introduced, thus further enhancing the precipitation effect. Furthermore, in view of the problem that the dewatering hole in the flowing sand body is easy to collapse, resulting in the failure of 60% of the dewatering hole and the sand body is extracted from the dewatering pipe, causing the risk of the cavity at the top of the tunnel, a method of pipe following is presented to avoid the damage of geotextile caused by directly inserting the dewatering pipe and further improve the dewatering effect. All the above processes together form an omnidirectional three-dimensional negative pressure precipitation method that considers the special sand body flow and water seepage of unfavorable geology and that has been proved to enhance the stability of surrounding rock in practice.

Collapse of the vault and numerous other safety accidents often occur during the construction process of large-section tunnels. The utilization of a small pilot tunnel and a step reverse expansion construction methodology is proposed based on conventional construction methods to explore safe construction technology. First, a theoretical analysis combined with on-site monitoring parameters was conducted. It showed that the maximum displacement of the tunnel surrounding rock was 0.027 m during the elastic stage and increased to 0.031 m during the strength limit stage. The overall surrounding rock deformation does not have a noticeable impact on tunnel safety. A numerical simulation model of the small pilot tunnel advancement and step reverse expansion method was established. Simulation results showed that the first two excavation steps caused 89.6% of the total overlining strata subsidence, and the use of a small pilot tunnel advancement and step reverse expansion method can enhance the tunnel support. The tunnel surrounding rock was adequately stabilized after using this excavation method and provides the in-situ conditions for expanding the pilot tunnel to the large-section tunnel. The proposed method was adopted in an actual engineering project. It protected the subsequent construction of the main tunnel and decreased construction time, saving construction costs while ensuring safety, reducing construction risks, and improving production efficiency. This research can guide similar tunneling projects.

Injecting carbon dioxide CO 2 into a coal seam is an important way to improve coalbed methane recovery and to store geological carbon. The fracture mechanical characteristics of bituminous coal determine the propagation and evolution of cracks, which directly affect CO 2 storage in coal seams and the efficiency of resource recovery. This study applied CO 2 adsorption and three-point bending fracture experiments using bituminous coal samples in a gaseous state (4 MPa), subcritical state (6 MPa), and supercritical state (8 and 12 MPa) to investigate the influence of CO 2 state and anisotropy on the fracture-related mechanical response of bituminous coal. The results show that the change in mechanical properties caused by CO 2 adsorption is CO 2 state-dependent. The supercritical CO 2 adsorption at 8 MPa causes the largest decrease in the mode-I fracture toughness ( K IC ), which is 63.6% lower than the toughness before CO 2 adsorption. The instability characteristics of bituminous coal show the transformation trend of “sudden-gradual-sudden fracture”. With or without CO 2 adsorption, the order of the K IC associated with three types of bituminous coal specimens is crack-divider type > crack-arrester type > crack-short transverse type. Phenomenologically, the fracture toughness of bituminous coal is positively correlated with its specific surface area and total pore volume; the toughness is negatively correlated with its average pore size.

Based on the processing and analysis of the fixed-point horizontal deformation data across the fault in the middle and southern part of the Tan-Lu fault zone in recent 20 years, this paper preliminarily analyzes the vertical deformation characteristics of the middle and southern section of the Tan-Lu fault. The research shows that the overall activity level of the middle and southern part of the Tan-Lu fault zone is not high, and the average combining rate is 0.19 mm/a. However, it has obvious characteristics of time-sharing activities: from 2000 to 2010, the activity in Huaibai-Suqian section was large, while the activity in Xinyi-Linyi section was relatively small. There was a relatively closed section between Suqian and Xinyi; The overall activity rate has decreased from 2011 to 2019, but the activity rate of Anqiu station has increased significantly compared with that of 2000 to 2011. There is a certain correspondence between the activitycharacteristics of the fault zone and the seismicity of the region i

Injecting carbon dioxide CO 2 into a coal seam is an important way to improve coalbed methane recovery and to store geological carbon. The fracture mechanical characteristics of bituminous coal determine the propagation and evolution of cracks, which directly affect CO 2 storage in coal seams and the efficiency of resource recovery. This study applied CO 2 adsorption and three-point bending fracture experiments using bituminous coal samples in a gaseous state (4 MPa), subcritical state (6 MPa), and supercritical state (8 and 12 MPa) to investigate the influence of CO 2 state and anisotropy on the fracture-related mechanical response of bituminous coal. The results show that the change in mechanical properties caused by CO 2 adsorption is CO 2 state-dependent. The supercritical CO 2 adsorption at 8 MPa causes the largest decrease in the mode-I fracture toughness ( K IC), which is 63.6% lower than the toughness before CO 2 adsorption. The instability characteristics of bituminous coal show the transformation trend of \"sudden-gradual-sudden fracture\". With or without CO 2 adsorption, the order of the K IC associated with three types of bituminous coal specimens is crack-divider type > crack-arrester type > crack-short transverse type. Phenomenologically, the fracture toughness of bituminous coal is positively correlated with its specific surface area and total pore volume; the toughness is negatively correlated with its average pore size.

Noninvasive prenatal testing (NIPT) for single gene disorders remains challenging. One approach that allows for accurate detection of the slight increase of the maternally inherited allele is the relative haplotype dosage (RHDO) analysis, which requires the construction of parental haplotypes. Recently, the nanopore sequencing technologies have become available and may be an ideal tool for direct construction of haplotypes. Here, we explored the feasibility of combining nanopore sequencing with the RHDO analysis in NIPT of β-thalassemia. Thirteen families at risk for β-thalassemia were recruited. Targeted region of parental genomic DNA was amplified by long-range PCR of 10 kb and 20 kb amplicons. Parental haplotypes were constructed using nanopore sequencing and next generation sequencing data. Fetal inheritance of parental haplotypes was classified by the RHDO analysis using data from maternal plasma DNA sequencing. Haplotype phasing was achieved in 12 families using data from 10 kb library. While data from the 20 kb library gave a better performance that haplotype phasing was achieved in all 13 families. Fetal status was correctly classified in 12 out of 13 families. Thus, targeted nanopore sequencing combined with the RHDO analysis is feasible to NIPT for β-thalassemia.

People with late-stage Parkinson’s disease (PD) often suffer from debilitating locomotor deficits that are resistant to currently available therapies. To alleviate these deficits, we developed a neuroprosthesis operating in closed loop that targets the dorsal root entry zones innervating lumbosacral segments to reproduce the natural spatiotemporal activation of the lumbosacral spinal cord during walking. We first developed this neuroprosthesis in a non-human primate model that replicates locomotor deficits due to PD. This neuroprosthesis not only alleviated locomotor deficits but also restored skilled walking in this model. We then implanted the neuroprosthesis in a 62-year-old male with a 30-year history of PD who presented with severe gait impairments and frequent falls that were medically refractory to currently available therapies. We found that the neuroprosthesis interacted synergistically with deep brain stimulation of the subthalamic nucleus and dopaminergic replacement therapies to alleviate asymmetry and promote longer steps, improve balance and reduce freezing of gait. This neuroprosthesis opens new perspectives to reduce the severity of locomotor deficits in people with PD. A spinal cord neuroprosthesis targeting leg motor neurons in real time improves walking and reduces freezing of gait in non-human primate models and in one individual with advanced Parkinson’s disease.

The exceptional performance of the wireless power transfer (WPT) system hinges on its resonant state. However, the capacitance drift caused by manufacturing tolerance and temperature will result in a state of detuning. In this manuscript, a PWM-controlled switched impedance (PCSI) topology that can express inductive and capacitive is proposed to eliminate line mismatches resulting from the above factors. Firstly, the PCSI topology is introduced, and its placement is determined based on the characteristics of the inductor–capacitor–capacitor series (LCC-S) network. Secondly, the working principle of the proposed topology is introduced. Finally, the simulation and experimental results show that the system could be restored to its resonant state by adjusting the PCSI topology. Under different values of resonant capacitors, the PCSI topology enhances the output power of the system by 40 W~150 W compared to the previous state, and the efficiency is increased by 9~13%.